Mark Glouberman

Matter, in Aristotle’s Metaphysics, plays a prototypical version of a rôle that recurs, refracted through the domestic preoccupations of each age, in metaphysical analyses of the constitution of the real. After identifying the rôle, I shall trace a developmental arc of philosophical treatment from Aristotle through the Cartesian period to Kant. The mature Kantian view of the rôle—the ‘critical’ view—is, I maintain, a reversion to the Aristotelian position. It is not however a simple reversion. It is reversion mediated through the Cartesian view. Arguably, the mediation is more than merely historical. Arguably, the Kantian treatment is conceptually or theoretically indebted to the Cartesian. This ‘dialectical’ indebtedness, if it can be established, has important, and as I see them negative, implications for the integrity of the Kantian stand.

Though, in view of Descartes' challenge to the epistemological credentials of "reason" early in the Meditations, one expects him to resist the claim that the professedly invulnerable cogito argument works through the suppressed premise "Everything that thinks, exists," interpreters have been hard-pressed to convert comprendre here into pardonner. Loath to convict Descartes of confusing a psychological point about inferential process with a logical one about the conditions for validity, many are driven to implausible construals, for example, the ingenious performative construal, on which "cogito" does not express a premise. In this fast-paced study Jerrold Katz, calling on his Chomsky-inspired theorising about natural languages, offers a via media. At the core is the thesis that validity is not always a matter of logical form--hence a rejection of the view whose contemporary prestige derives from Frege. According to Katz, the validity of analytic entailments is a function not of logical form but of the senses of the contributing linguistic elements. The cogito argument, Katz maintains, falls into this class. Thus, comprendre avec pardonner: Descartes is not being evasive when he holds that there is an argumentational move from "cogito" to "sum" while denying that the argument, as presented, is enthymematic.

1. The distinction between the functions of sense and intellect in cognition is first given its modern form by Kant. According to one influential commentator, Jonathan Bennett, “Kant’s breakthrough” in fact consists precisely in liberating himself from his predecessors’ misconceptions in this regard. It is true that the categorial duality of receptivity and spontaneity—of intuition and concept—is not to be found in the major classical writings prior to Kant. In its place, one encounters a relativized distinction. The empiricist Hume, for example, describes a conceptual element or “idea” as differing only in “vivacity” from an item of sensory intake or “impression,” and the rationalist Leibniz says of a state of “pure” intellection that it differs from a perceptual state in being clear of the residuum of cognitive “confusion” which taints the latter.

Unhappy with a recent submission of mine, a referee for a journal specialising in the history of philosophy wagged a finger at what he or she called my ‘hermeneutical principles’. Though I am no stranger to the collegial woodshed, my initial reaction was nonetheless one of surprise. For had I then been asked about interpretive methodology I would have scoffed. The construer’s best course, I would have said, is to nose about the texts until some rough shape begins to emerge from the murk, and to inch forward in an effort to block in details, frequently doubling back for more nosing about. Isn’t this —fill, back, adjust, refill, back again, re-adjust—a counsel of anti-method?

For placing the contrast of certainty and uncertainty at the philosophical center, Descartes is charged with Michael Dummett with mistakenly subordinating the study of language and meaning to epistemology. But Dummett's knowledge-theoretic reading of the certainty/uncertainty duality is as erroneous as the tradition it inherits is long. The Cartesian demand for certainty and critique of uncertainty in mature writings like the Meditations has a definite semantic character. Cartesian uncertainty, construed aright, anticipates Dummett's putatively original idea of a non-reductive yet non-realist semantics for standard factual claims asserted on the basis of sense-evidence. There is an internal relation, in Descartes' philosophy, between a repudiation of uncertainty and a repudiation of a non-realist conception of the world.